Apparatus for the construction of plastic walls.



No. 812,006. PATENTBD FEB. 6, 1906.

D. W. BOVEB. APPARATUS FOR THE GONSTRUGTION 0F PLASTIC WALLS.

APPLICATION FILED AUG. 12, 1905.

3 'SHEIITS-SHBBT 1.

muvcul'o:

No. 812,006. PATBNTED FEB. s, 1906. n. w. BOVEE.

APPARATUS FOR THE CONSTRUCTION OF PLASTIC WALLS.

APPLICATION FILED AUG. 12, 1905.

3 SHEETS-SHEET 2,

MAW,

anuentoz PATENTED FEB. 6, 1906.

D. W. BOVEB.

APPARATUS FOR THE CONSTRUCTION OF PLASTIC WALLS.

APPLIOATION FILED AUG. 12, 1905 3 SHEETS-SHBET 3 Enwcntoz Wt. Meow:

UNITED STATES PATENT OFFIGE.

DAVID W. BOVEE, OF -VVATERLOO, IOWA.

APPARATUS FOR THE CONSTRUCTION or PLASTIC wALLs.

" Specification of Letters Patent.

Patented Feb. 6, 1906.

. struction of Plastic Wal s, of which the followmg is a s ecification, reference being-had therein to t e accompanying drawings.

My invention relates to 1m rovements in ap aratus for the construction of plastic wa ls.

The object of .my invention is to provide a mold for molding walls of" this character which is formed of independent removable sections, each mold-section representing a section. or block of "which the Wallis coIistructed. Each of said sections preferably has means at'all four sides oredges thereof whereby it is removably secured to the ad 'oining section and so constructed that it can e used at any place along the wall construction.

Another object of my invention is to provide, means for holding the removable front sections to the rear wall or backing of the mold at the proper distance therefrom and whereby said means is readily removed from the wal after the same is completed.

A still further object of my invention is to provide a more simple, cheap, and effective mold-section of this character whereby the securing or holding means performs the additi onal means for preventing the cement from passin from between said mold-sections.

' In t e accompanying drawin s, Figure 1 is a pers ective view of the ,mol sections arrange .to form a corner of a section of a wall durm the construction thereof. Fig. 2 is a side e evation of a wall during construction,

showing several mold-sections secured in position. Fig. 3 is a transverse vertical sectional view taken on the line 3 3 of Fig. 2.

i Fig. 4 is a lon 'tudinal horizontal sectional view taken on t e line 4 4 of Fi' 2. Fig. 5 is an enlarged perspective view ofthe securing holts used for holding the mold-sections to the backing. Figs. 6, 7, and 8 are perspective views of several forms of securing-strips used on different forms when constructing angles of different character, Fig. 9 is a perspective view of a modified form of the securing-stri ,JhOWiIlg the mold-sections inposim tion in otted lines. Fig. 10, is a perspective View of a wall under construction an showmay be made in sections of any length.

irlig means for constructing arches and the Referring now to the drawings, 1 represents a backin which is usually used in the construction 0 walls of this characterand which is made of planking in any desired manner. The front wall of said mold is formed of mold-sections 2, which, as shown, are preferably made with an ornamented inner face 3 to represent, preferably, blocks of stone or the like. The said moldsections, as shown, are ofan oblong or other form and of different len the and have at their edges'on the outside t e projections 4, which are preferably two at cac edge of a section and which are provided with recesses 5, and said recesses at both top and bottom are in communication with the ed es; but said projections or lugs, as clearly s own, do not extend uite to the edge of the mold-sections, and t us do not interfere at all with the placing of the edgesof the mold-sections together for forming a tight joint between the same. a Fitting within the recesses formed in the'lugs 4, carried by the ad'oining' faces of the wall-sections, are the strips 6, which hold the moldsections in alinement and prevent them from having a lateral movement and also efiect- .ively close the jointbetween the upper and lower adjoining ed es of the sections and pre vent the leakage o the plastic material from between the same. The said'strips are of a width to fill the recesses of the lugs carried by the adjoining faces of the mold-sections a liild e ends of said sections are provided with outwardly-extending lu s 7, which have their outer faces 8 a short distance from the end of the mold-section and their inner faces 9 beveled inward, said lugs being also slightly taered from the lower end upward. The said ugs, as shown, are so arranged upon the sections that they come opposite each other when the mold-sections are placed in their respective ositions, and thus the two adjoining lugs mm a dovetail projection; In orderto hold the ends of said section in their respective positions, I provide locking-plates 10, which are slightly tapered and -are,also provided with a tapering dovetail recess 10', adapted to receive the dovetail rojections formed by the abutting lugs oft e two adjoining sections, and when said plate isdriven thereon it firmly draws the adjoining ends of the sections together and holds them portion 11 andhave at'their inner en s the ogtwardly-extending reduced screw-thread e bac 'ng 1 and has secured thereon the'nut 13, which securely holds the bolt to the backing. The opposite or smaller end of thebolt is also provi ed with a screw-threaded elongated rojection 14, which extendsthrough the mo d-sections and has a nut 15'on the inside of the mold-section and a nut'lfi on the outside, which firmly hold the mold-sections to the backing. The boltsfas is well understood, are placed in position before the 001m position is placed in the mold, and by means of the two nuts 15 and 16 it will be seen that the mold-sections may have an inward or outward adjustment to bring the same inha vertical alinement with each other. elon ated projection 14 is, as clearly shown, of a ength considerably greater than that at the opposite end, and in order to prevent the cement from surrounding said threaded projection when a Wall of greater width is being constructed and also to allow a greater adjustment of the securing-nut for walls of different thickness I provide a number of tapering sleeves or thimbles 17, which slip loosely'over said projection 14 and form a continuation of the tapering body portion, and thus any number of said thimbles or sleeves may be removed.

' dened and the backing and mold-section re The'adjoining edges-of the mold-sections at their upper ends areprovided with semicircular openings 18, which are so arranged that they come opposite each other when the sections are placed together, thus forming openings through which the tie-bolts pass. It is understood that'it is not necessary to have-a tie-bolt for each section, as the sections are firmly secured together, as heretofore described. It will be seen by the conical shape o the bolts that the same ma be readily driv n from the wall after it has armoved and the same bolts used in the further construction of the wall.

As shown in Fi 1, the same mold-sections can be used in t e construction of corners; but in constructing the corners the securingstrip 5 is of an angular form, and instead of using a straight wedge-shaped lock 10 I- employ the angular-shaped lock -19, which is ada ted to engage the projections 7 at the end 0 the section and form a ositive tie for the corners. In Figs. .6, 7, an .8 the holding ortion 12-, which extends through the strips are of different angles to form the different angles of the wall, the same moldsections being used; but corner lock-plates are used to correspond with the-angles of the holding-strip.

After the cement has hardened 1nd the mold-sections have been removed in order to continue the upward construction of the wall and have a base to work from the upper bolts 11 are not'removed; but on said bolts are laced the cleats20, having .the recesses 21,

in which rests ,the holding-strip 6, and thus the mold-sections are placed in position on the said strip and the wall continued upward, thereby necessitating fewer moldsections, as all of the sarne can be removed after the wall has hardened- In-the modification shown in Fig. 9 instead of providing the mold-sections with the lugs 4 I provide the upper and lower edges of the securing-strips 6 with longitudinally-extending grooves; 18 and 19, into which theupper and lowered es of the mold-sections pass, thusserving t e same function as the projections to prevent any lateral movement of the mold-sections in respect to each other.

Having thus described my invention, what I claim, and desire to secure by Letters Pat cut, is

1. An apparatus of the character described,

com rising mold-sectionshaving projections carried by their outer faces adjacent to the upper'and lower edges, and having recesses in their outer faces, and strips extending in the recesses and holding said sections in a vertical alinement.

2. An apparatus of the'character described, I

comprising mold sections, oppositely arranged projections carried by the abutting ends, locking-plates having recesses to receive said projections, outwardly-extending projections carried by the upper and lower edges of said sections, and recesses inf'the outer side walls thereof, and a strip resting within the.said recesses and holding said sections in vertical alinement.

3. An apparatus of the character described,

comprising a backing, mold sections adjacent thereto, tapering bolts securing said sections to' the backing, oppositely-arranged projections carried by the abutting ends of said sections and forming tapering dovetail projections, lockingziplates having dovetail recesses toreceive sai extending projections carried by the upper andlower edges of said, sections, and having recesses in the outer side walls thereof, and a strip resting in said recesses of said rojections and held therein and holding t e said sections in a vertical alinement against lateral movement.

e An apparatus of theLcha-ra'cter described, comprising a backing, mold-sections adjacent thereto, tapering bolts having a reduced screw-threaded portion passing through the projections, outwardlyscrew-threaded portion passing through the backin a nut carried thereby onthe outside of the acking and the opposite end of said bolt having a reduced screw-threaded por tion passing through the mold-sections, and a nut carried by said screw-threaded portion on the inside and outside of the mold-sections.

comprising a backing, mold-sections adjacent thereto, tapering bolts having a reduced backin a nut'carried thereby on the outside oi? the acking and the opposite end of said bolt having a reduced screw-threaded portion passing throu h the mold-sections, removable taperings eeves carried by said reduced screw-threaded portion, and nuts carried thereby on the outside of the sleeve and serving to ock them in position.

- on the inside and outside of the mold-sections.

6.-An apparatus of the character described,

comprising a pluralityof separate mold-sections, a strip passing alongv the abutting edges of adj acentsections, and means for interlocking the sections withthe strip.

7'. An apparatus of the character described, comprising a plurality of mold-sections arranged out of line with each other, and a lock-.-

ing-strip spannin the junction of the said mold-sections and serving to interlock them in proper position.

8. An apparatus of the character described for forming structures with an lar-arranged walls, comprising a plurality o mold-sections arranged at an angle to each other, and alocking-strip spanm'n the apex of the angle and extending aralle with the said sections and .9. An apparatus of the character described for forming archwork, comprising a plurality of mold-sections placed in arch relation, and

a combined arch-shaped supporting and holding strip interlocking'with said mold sections. 10. An apparatus of the character described, comprising mold-sections having proand holding recesses :in their outer faces, horizontallyarranged thin strips extending indie. recesses and holding said sections in a vertical alinement, projections carried by the vertical edges of the mold-sections and formin tapering dovetail projections, and a 100 g- 5. An apparatus of the character described,

removably plate having a dovetail recess to receive said projections and holding the ends of said sections together.

12. An apparatus of the character described, comprising a backing, mold-sections '65 ad'acent thereto, tapering boltshaving a reduced screw-threaded portion passing" through the backing, a nut carried thereby on the outside of the backing, and the end of said bolt having an elongated reduced screw- 7c threaded portion passing through the mold.-

sections, a series of removable ta ering sleeves loosely mounted on said re uced screwthreaded portion, and nuts carried thereby on the outside of the sleeve, one on each side of the mold-sections.

13. An apparatus of the character described, comprising a backing, mold-sections su ported by. the 'backin outwardly-extendin projections carried outer faces, mol -sections adj acent their u per and lower edges, and having recesses in their sides adjacent the edge of the section,

and strips extending horizontally across the line of juncture of the sections and resting in 8 5 the recesses in the lugs of the adjoining sec tions.. 14. An apparatusof the character described,.comprising a backing, mold-sections removably suplportedthereby, and locking-p0 plates having ongitudinal recesses in their upper and lower edges to receive the adjiplining edges of the-mold-sections, and 100 'ng the same together.

15. An apparatus of the character r de 95.

scribed, comprising a backing, mold-sections removably sucpported by the backing, outwardly-exten in projectionscarried' ythe outer. faces of t e mOld SGCtlOIIS adjacent their uplper and lower edges and alternately zoo carried the upper and ower sections, and having recesses in their faces adjacent the' edge of the section, and elongated thin flat strips resting in the recess in the lugs of the adjoining sections and bearing against the 195. outer faces ofthe sections.

16. Anfapparatus of the character 'de scribed, comprisinga backing, mold-sections removably supported'thereby, and locking-.. plates having longitudinally-exten'ding' re- .rro

cesses in their upper and lower edges of a size to snugly receive the straight smooth ad'oin- 'ing edges of -the mold-sections and 100 "ng the same together.

in presence of two witnesses.

I j DAVID W. BOVEE. Witnesses: I

I Joan. L. FLETCHER,

-' CHAS. R. WRIGHT, Jr.

y the Intestimony whereof I ailix my signature 1 15 

